Airborne Signal Conditioner, Model 4139

Press Release:
  Feb 9, 2010 — Dytran Instruments has recently release a new signal conditioner designed specifically for airborne flight testing. Model 4139 is a six-channel signal conditioner designed to power up to six IEPE constant current type accelerometers while adding filtering, output biasing, and output limiting to present signal overdriving. The 4139 is intended for flight test use and operates from +28 VDC aircraft power. This miniature package measures 6.25 x 4.00 x 1.03 inches and weighs around ¾ pounds.

The input power, output signals, and power to the accelerometers are interfaced by one D-subminiature multi-pin connector. The accelerometers are connected to the 4139 through six 10-32 jacks. A nominal +2.50 VDC offset is provided at the output. This allows for direct connection of the output signals to telemetry transmitter modulators which are designed to receive input signals over the range of 0 to +5 V. The output signal positive swing is limited to +5.6 V to avoid the possibility of overdriving the signal from one channel into the range of the adjacent channel. The 4139 has four mounting holes at the corners to accept #10 mounting screws for easy installation to the airframe.

To learn more about model 4139, please contact us at

Company Information:

Established in 1980, Dytran Instruments, Inc. is a leading manufacturer of piezoelectric and DC accelerometers, force and pressure transducers, and associated electronics. Dytran products are used extensively in aerospace, test and measurement and industrial applications. Additionally, Dytran products are widely utilized for on-board measurements in a variety of aerospace, commercial, and military applications.

Dytran maintains a world-class manufacturing facility in Chatsworth (Los Angeles) California. This vertically integrated facility includes engineering, administrative, manufacturing, and automated machining capabilities. Dytran products are available worldwide via a network of distributors and representatives.
For more information:
 Additional link: 
Tags: IEPE, signal conditioner, 4139
Categorized Under: Signal Conditioners
Company Details:
 Contact:Laurie Marquart 
 E-mail:lmarquart -at- dytran -dot- com 
 Company:Dytran Instruments, Inc. View Company Profile 
 Address:work21592 Marilla Street 
 Location:workChatsworth, CA 91311  United States 
 Web Site: